Combined blowpipe and soldering iron



EA'H ,620

A MARQUEE Filed May 26, 1921 COMBINED BLOWPIPE AND SOLDERING IRON Get. 23, W23.

INVNTORn Witnesses Patented Get. 23, 1923.

OFFICE.

A EDEE MAno Is, or LONDON, ENGLAND.

COMBINED BLOWPIPE AND SOLDERING IRON.

Application filed May 26,

To all whom it may concern:

Be it known that I, AMiiDiiE MARQUIS, a citizen of the Swiss Confederation, residing at London, in the Kingdom of England, have invented new and useful Combined Blowpipes and Soldering Irons, of which the following is a specification.

My invention relates to a combined blowpipe and soldering iron its object being to provide a simple appliance with a removable U-shaped holder and inturning copperbit which can readily serve for either purpose and will give a powerful flamewhile at the same time being easy to manufacture.

In order that the invention may be fully understood and readily carried into effect I will now proceed to describe the same with reference to the accompanying drawings, in which:

Figure 1 is an elevation showing the ap paratus fitted with the soldering bit: Fig. 2 shows a vertical section with the individual parts slightly spaced apart and without the soldering attachment; Fig. 3 shows an end view of the soldering attachment. Fig. 4 shows a corresponding plan and Fig. 5' shows a plan of the holder for the bit.

According to the construction adopted as illustrated, I provide a central tube or hollow. expansion tube a partly surrounded by a non-conducting material I), fibre for. example, so as to be capable of being held in the hand for use.

The inlet end to the expansion tube a is contracted or reduced as at c to receive a gas supply pipe or the like. The other. end 03 is slightly reducedand has screwed into it a flanged nipple 6 over which is secured a nozzle 7 having lateral air holes 9 in its lower portion and being fitted with, or reduced at its upper extremity to form the burner k. The nipple and nozzle f together form a combined supplementary ex pansion chamber and Bunsen tube, the parts being of such dimensions as to give the size of flame desired. A short screw-thread 21 is formed on the burner 72. of the nozzle f to receive a nut k for holding a removable 1921. Serial No. 472,893.

slotted member Z carryingthe soldering bit m, when such is needed.

This member is of U-shape having a cutout seating portion a inits base or bridge portion to enable it to be slipped around the screw-threads 2' upon the annular seat of the nozzle 7 and being looked in position by the aforesaid nut in. The upper ends or prongs of the U-member carry a copper bit m, on a cross-bolt, so that wards out of harms waywhen not in use.

The hollow central member forms, a gas expansion chamber by reason of an inner enlarged portion 6 with contracted ends andcoi'isequently a certain pressure of gas is thus forced through the nipple e, the area of whichis calculated to suit the size of the apparatus, while a supplementary expansion chamber is formed by the nozzle f.

It will be obvious that a simple and eifective appliance is provided by this invention which, when used as a soldering iron, provides constant heat from the flame direct onto the bit.

The top of the nipple must, in practice be exactly at the centre of the air holes 9 in order to give the best results.

I claim: 7

Ina combined blow pipe .and soldering iron, a gas tube having a shouldered contracted rear end, an inner enlarged portion to form nally screw-threaded contracted forward end, a handle covering the expansion chamber, a flanged nipple screwed into said forward end,

cured on the nipple and forming supple- :mentary air and gas mixing chamber, a

straight burner tube screwed into the outer the bit can be turned in expansion chamber and an inter? a laterally perforated nozzle seend of and leaving an annular seat on said nozzle, an U-shaped holding member, having a cut-out seating portion, of said vnpzzle, lockthe holding member, and a l p copper-bit carried on a cross-bolt fast in the said holding member.

A, MARQUIS.

carried on the seat a nut on sand burner tube to prongs of i 

